Which light indicates that the FA Call Button has been activated?

The light that indicates the FA Call Button has been activated is the green light at each Passenger Service Unit (PSU). This green light serves as a clear visual indicator for flight attendants that a passenger has requested assistance. When a passenger presses the call button, this light will illuminate, signaling to the flight attendants in the cabin that their attention is required.

The specific function of the green light is crucial in ensuring timely responses to passenger needs, enhancing the overall safety and comfort during a flight. Understanding this signaling system is essential for flight attendants as it allows them to prioritize and respond effectively to passenger requests.

Other options may involve various indicators within the aircraft, but they serve different purposes. For instance, an amber area indicator light typically indicates a status or alert pertaining to the cabin environment, while a red emergency light signals an urgent situation requiring immediate action but does not denote a regular call from a passenger. The flashing blue light in the cabin might also be associated with other announcements or alerts but does not specifically pertain to the activation of the FA Call Button.